docs: def on_connection_unblocked(self, method_frame):
          """When RabbitMQ indicates the connection is unblocked, set the state
          appropriately.
  
          :param pika.amqp_object.Method method_frame: Unblocked method frame
  
          """
          LOGGER.debug('Connection unblocked: %r', method_frame)
          self.state = self.STATE_READY
          if self.on_ready:
              self.on_ready(self)